Copying-press



(No Model.)

- L.. BAILEY.

COPYING PRESS@ Patente@ July rig- 1882.

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N. PETERS. Pnqmlnhumow. wnhmgmn. n. c.

- UNITED STATES lPATENT OFFICE.,j

LEONARD BAILEY,V OF HARTFORD, CONNECTICUT.-

COPYING-PRESS.

SPECIFICATION forming part of Letters Patent No. 260,733', dated July 11, 1882.

Application filed January 20, 1882. (No model.) i

To all whom it may concern:

Be it known that I, LEONARD BAILEY, of Hartford, in the county of Hartford and State of Connecticut,have invented certain new and useful Improvements .in Copying-Presses and I 'do-hereby declare that the followingis afull, clear, and exact description thereof, whereby a person skilled in the art can make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon.

Like letters in the iigures indicate the same parts.

My improvement relates to presses for taking impressions from manuscript upon wetted paper, and in appliances for their more convenient use.

The objectof my invention is to provide a more convenient method and apparatus for equablydampeningthe copying-pads which are used for wetting the copying-paper; and it also includes certain arrangements of the construe tion of the press required in carrying out the foregoing object.

In the accompanying drawings, illustrating my invention, Figure 1 is a front view of a letter-copying press embodying my improvement, having a part of the upper portion .of the standard cut away in order to` show the interior parts.v Fig. 2 is a top view of the press. Fig. 3 is a cross-section from front to rear through the middle of the press.

A is the base of the press.

B is the standard, which commonly extends over the top of the press, for supporting the screw.

C is the platen, which is moved up and down by the screw, between which and the base the impression is taken.A

D is the screw for giving the impression. It is shown in the drawings as operated by a hand-wheel, though the customary arms or levers can be used. This screw, instead of being made with a single or double thread turning one way, usually to the right, is composed of right and left handed threads, one above the hand-wheel and one below. These are shown at D' and D" in the drawings.

These screws turn in sockets B in the cross' bar of the standard and C in' the platen. The sockets are furnished with hollow threads of or are attached to the part B. These rolls y are ot' suflicient length to allow the danipenin gpads to he passed between-them. The upper one is shown in the drawings as provided with a crank-handle extending through one of the posts, and the lower roll as arranged to be driven by a frictional contact wit-h the upper one.

H is a trough for containing water. It forms part of the standard, or can be made in one piece with the posts G and attached to the standard B, as shown in the drawings. The lower roll, E, runs in this trough, and has its lower part dipping into the water. The sur face of the roll E is covered with cloth or an absorbent substance, which remains wetl as the roll revolves. The interior of the roll is made of metal or of .any other suitable substance or material in common use. The upperroll presses upon the lower by springs, which will be described, and hasY its force regulated to squeeze the water'out of the covering of the lower roll to the exact degree of dainpnessrequired to properly wet the pads. The upper roll is made of metal, or may be made of any suitable material. The journals of the lower roll,E,run in lixed boxes J in the posts G. The journals of the upper roll, F, run in movable boxes or hearings K, which slide up and down in grooves in the posts G, and are acted upon by springs, which can be made to exert more or less pressure between the rolls by means of adjusting-screws.

L is a spring, having the curved form shown in the drawings, with a flat end, L', extending upward into a slot between the side of the post and the block M.

M is a block set in the top of the post and held by screws in its place; or it may form part of a cap to the post. It is made remova- IOO ble to allow the boxes of the rolls to be removed when required.

N is a set-screw passing through a hollow thread in the block M and bearing upon the upper side of the curved spring L. Each end of the upper roll is furnished with the same spring adjustment', and the roll is given its proper pressure by turning the knobs of the screws N.

O is a drawer in the base of the press for holding the pads. They are placed in this drawer after being used, and when they are again required for copying, whatever may be their condition as to dryness or dampness, theyare put into the exact proper condition by being merely passed between the rolls before being used. This is effected by turning the crank-handle l).

Q and Qare thin plates, which rest in notches in the sides of the posts G and rest upon the edges of the trough H. They are held in position by the notches inthe posts and by lugs upon ltheir under sides, which prevent their removal unless the plates are turned upward. These plates serre as a table for guiding the pads into the rolls, and also provide a cover for the trough H.

What I claim as my invention is- 1. In combination with the frame which sustains the screw and platen of a screw copyingpress, the roller E, the adjustable pressureroller F, havinga handle, l), and the trough H, substantially as described.

2. In combination with the frame of a copyingpress, the rollers E and F, the trough H, and the plates Q, substantially as described.

3. In acopying-press provided with a trough, H, and rollers E F above the cross-bar of the frame, the rightandleft screw D, operating between the cross-bar and the platen, substan tially as described.

4. In a copying-press, the combination of the herein -described dampenin g device, arranged on the cross-bar, and the drawer O in the base, for holding the dampened pads, substantially as described.

LEONARD BAILEY.

Witnesses:

L. H. Gaona, THEO. G. ELLIS. 

